The gap between door and wall is 28mm(1") based on door thickness 40mm(1 4/7"). Door panel need to be cut a groove for floor guide, Groove Height:1"Width:3/5".
5FT track had been pre-drilled 16 apart holes. Suitable for door thickness 35-45mm(1 2/5-1 4/5).5FT track kit can be used for door width up to 30. The item "Top Mounted Black Rustic Sliding Barn Door Interior Closet Door Track Hardware" is in sale since Tuesday, October 15, 2019. This item is in the category "Home & Garden\Home Improvement\Building & Hardware\Doors & Door Hardware\Other Door Hardware". The seller is "beileli_0" and is located in Carol Stream, Illinois. This item can be shipped to United States.